Why this matters for beginners
Most market disasters, bankruptcies, dividend cuts, forced equity raises, start on the balance sheet, not the income statement. Understanding leverage is essential before you trust any profit figure.
Main explanation
Debt isn't bad in itself. Used carefully, it can boost returns on equity and fund growth. Used carelessly, it turns small downturns into existential threats.
Two simple checks: Net debt = total debt − cash; Net debt ÷ EBITDA shows roughly how many years of operating profit would be needed to pay it off.
Watch interest coverage (operating profit ÷ interest expense). A ratio under 3× is a warning sign; under 1.5× is dangerous.
Maturity profile matters: a company with most of its debt due next year is much more exposed to credit markets than one with debt spread out over a decade.
Example using a real company
Two retailers with identical revenue and margins can have very different risk if one carries 5× net debt/EBITDA and the other is net-cash. A bad year can crush the leveraged one and barely scratch the other.
- →Company X: $1B EBITDA, $5B net debt → 5× leverage. A 20% earnings drop puts covenants at risk.
- →Company Y: $1B EBITDA, $0.5B net cash → no leverage. Same earnings drop is uncomfortable, not threatening.
Common beginner mistakes
- ✕Looking only at the P&L and ignoring the balance sheet.
- ✕Treating buybacks funded by debt as automatically good.
- ✕Ignoring off-balance-sheet liabilities like leases or pension gaps.
Key terms
- Net debt
- Total debt minus cash and short-term investments.
- EBITDA
- Earnings before interest, tax, depreciation and amortization, a rough proxy for operating cash generation.
- Interest coverage
- Operating profit divided by interest expense, how easily the company can pay its lenders.
- Maturity wall
- A large amount of debt all coming due around the same time.
Key takeaways
- 01Debt amplifies both returns and risks, context matters.
- 02Check net debt/EBITDA and interest coverage together.
- 03When debt is due is often as important as how much it is.
Check yourself
- 01A profitable company can still go bankrupt.
- 02Net debt ignores the company's cash balance.
- 03Higher leverage always means higher returns for shareholders.
Try the concept on a real company
Use the Analyzer to compare a net-cash giant (AAPL, MSFT) with a more leveraged business. Look at how the risk section frames debt sensitivity differently for each.
Educational examples only. Not buy or sell recommendations.